In the beginning there was Asus and not wanting to skimp on component quality they stayed AsusThen there was Asrock the spin-off same board design as asus just cheaper quality components onboard

but over the years Asrock has become a major brand name in mobo manufacturing they now compete really well with most top brands in component quality and performance usually at reasonable prices the only ones they don't yet compete with are the likes of Asus's top end mobos and like

Pretty much you can't go wrong with an Asrock mobo now a days good OC'ers plenty of options onboard like SATA III, USB 3, eSATA and the likes